The Teaching Point

Appendiceal intussusception is a rare entity, which appears on CT as a “sausage-shaped,” or “reniform” lesion in the cecum. Appendiceal intussusception has variable symptomatology, but may be precipitated by a “lead point” in adults, which should prompt further investigation.






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From the manuscript

CT diagnosis of appendiceal intussusception in a middle-aged female

Free full text article: CT diagnosis of appendiceal intussusception  in a middle-aged female

Abstract
Appendiceal intussusception is rare with an estimated incidence of 0.01%. Although it is infrequently encountered, the few documented cases of this entity have shown it may mimic or indicate an underlying neoplasm when evaluated with colonoscopy. With the abundant use of multi-detector CT and increased utility of CT colonography, awareness of the radiologic findings of this condition has become increasingly important. Appendiceal intussusception, while potentially pathologic in its own right, may mimic or even coexist with other pathologies, both malignant and benign. We present a case of adult appendiceal intussusception without a "lead point" that was successfully diagnosed by CT imaging.






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